baber/WOPTO huggingface dataset:
Patent GB-601855-A (GB)
Title: Applicator for radio frequency dielectric heating
IPC: H05B6/62
Filed: 1945-10-09
Abstract: 6 0 1,8 5 5. Heating by dielectric loss. LAWSON, D. I., and PYE, Ltd. Oct. 9, 1945, No. 26251. [Class 39(iii)] Applicator, which may be in the form of a pressing iron, for high - frequency dielectric heating, comprises two electrodes 1 with teeth 2, held in spaced relationship by a handle member 3. The electrodes are disposed with the teeth interspaced and slightly overlapping in the transverse direction so as to ensure that the most intense field will be produced along the line joining the end regions of the teeth. Two resonant transmission line members 4 are connected to the electrodes 1 and are tuned by a slider member 5, high frequency power being supplied by cables 6. An alternative arrangement described is in the form of a pressing iron having a variable condenser incorporated for tuning in place of the slider member 5.
Patent GB-948482-A (GB)
Title: Apparatus for dispensing a predetermined quantity of liquid
Inventor: WILLSHAW HARRY
IPC: G01F11/02
Filed: 1959-07-31
Abstract: 948,482. Liquid dispensing apparatus. DUNLOP RUBBER CO. Ltd. July 14, 1960 [July 31, 1959], No. 26283/59. Heading F1R. In an apparatus for dispensing a predetermined quantity of liquid the liquid is supplied to a cylinder 1, Fig. 1, from a tank 35 and discharged through an outlet valve 7 by a gas-pressure-actuated piston 20. The rotary plate outlet valve 7, Fig. 2, is actuated by a pneumatic piston and cylinder 19 acting through a rack 18 and pinion 17, couplings 11a 11b and a shaft 8. Liquid is forced by compressed air from tank 35 into cylinder 1 through a non-return valve 33. Compressed air is then admitted to pipes 28 and 32, through a 4-way valve 30, to actuate pistons 19 and 20 to open valve 7 and discharge the liquid. An extension 21 of piston 20 projects into an outlet pipe 4 to empty it. After discharge, compressed air is fed to a pipe 31 to close valve 7 and pipe 28 is vented to atmosphere prior to refilling cylinder 1. The measurement of the quantity of liquid to be dispensed may be effected by a weighing machine connected to tank 35 or by the provision of a limit switch 45 actuated by piston 20 through a plunger 46. Switch 45 controls a solenoid-actuated valve 36. The length of plunger 46 determines the quantity of liquid taken into cylinder 1. Electric heating coils are provided between cylinder 1 and a casing 34 and around tank 35.
Patent GB-1419195-A (GB)
Title: Integrated magnetic wire memory devices
IPC: G11C5/08
Filed: 1973-06-01
Abstract: 1419195 Magnetic wire storage matrices OKI ELECTRIC INDUSTRY CO Ltd 1 June 1973 [2 June 1972 12 Oct 1972] 26390/73 Heading H3B A magnetic wire memory matrix has a set of plated wires 22, Fig. 1, within an insulating sheet 23, and a set of orthogonal hairpin conductors 24 on the sheet, each of the hairpin conductors having a screen comprising partial peripheral magnetic keeper 25 and having ends which project beyond the sheet 23. 'The matrix is made by laminating the wires shown at 12 in Fig. 2 between two copper clade sheets 13 and then etching the copper to provide the orthogonal conductors. The hairpins are formed by etching the edges of the sheet and soldering the thus exposed conductor ends, and the projecting conductor ends at the other edge of the matrix are similarly formed. The keepers are formed by coating or pressing. The matrix may be folded around support boards.
Patent GB-224533-A (GB)
Title: Improvements in high frequency signalling systems
IPC: H03B5/10
Filed: 1924-11-05
Abstract: 224,533. British Thomson - Houston Co., Ltd., (Assignees of Baker, W. R. G.). Nov. 6, 1923, [Convention date]. Thermionic generators; thermionic and magnetic modulating systems.-Relates to signalling systems in which the output from a thermionic high-frequency generator is fed to an intermediate storage circuit, which transfers energy to the aerial system during marking intervals only, and not during spacing intervals although the valve is continuously active. In order to maintain the valve oscillations at constant frequency, in spite of the variable coupling between the storage and radiating circuits, the grid of the oscillator is energized from the radiating circuit only. High-frequency oscillations from the valve 1 are fed to the storage circuit 7, 8 which is coupled through an earthed link circuit 13, 14, 15 with a radiating antenna 10, 11, 12 of the multiple tuned type. The coupling between the storage and radiating circuits is controlled by a magnetic modulator 21, 22, which detunes the storage circuit under the action of a signalling key 23. The necessary grid excitation to maintain the valve oscillations is derived by a tapping 17 from the coil 16, the connection including a shunted condenser 18, 19 and a series resistance 20.
Patent GB-278726-A (GB)
Title: An arrangement for reducing cross talk in coil-loaded telephone conductors
IPC: H04B3/487
Filed: 1927-10-06
Abstract: 278,726. Siemens & Halske Akt.-Ges. Oct. 8, 1926, [Convention date]. Telephone circuits loaded to improve transmission; preventing inductive effects between.-For balancing the inductance of coil-loaded lines with a view to eliminating cross-talk, particularly in phantom working, a portion of the copper conductor of one of the lines is replaced by a conductor having a greater inductance but about the same resistance. The substituting conductor may be introduced into a coil itself in place of some of the ordinary copper wire turns, or it may be introduced externally as for example in the lead into the coil box. Krarup conductors may be used as the substituting conductor the external field due to the cover being neutralized by providing a double cover wound in opposite directions, a ferro-magnetic shell of thin coaxial annuli, or an electrolytically deposited coating on the conductor.
Patent GB-482216-A (GB)
Title: Improvements in the manufacture of artificial filaments, films and similar materials
Filed: 1936-09-30
Abstract: Artificial filaments, yarns, foils, films, and similar materials are produced with a basis of a substance which is a polymerization product of an organic compound containing an ethylene linkage and which contains ester groups and esterifiable hydroxy groups but which is free from carboxy groups or salts thereof, the proportion of ester groups being from 60-85 per cent of the theoretical maximum content. The materials may be obtained by shaping and setting a composition containing the polymerization product containing the ester groups and hydroxy groups, or by saponifying materials obtained from polyesters containing more than the required proportion of ester groups. Polymerized vinyl acetate, chloracetate, propionate, or benzoate may be employed.  The polymerization product may be obtained by partial esterification of polyvinyl alcohol, or by partial saponification of a polyvinyl ester.  Saponification may be effected by means of aqueous alkali, or an aqueous solution of an organic base, or an alcoholic solution of a base.  Specified organic bases are ethylene diamine and methylamine.  The solutions employed for making the shaped materials may contain medium or high boiling solvents or plasticizers.  The solutions may be extruded into an evaporative atmosphere or into water or a salt p  solution or an aqueous solution of a solvent for the partially saponified polyester.  The filaments may be stretched during production.  Filaments may be passed through solutions of softening agents or through hot water or steam, and stretched while in softened condition.  Alternatively they may be allowed to shrink.  The materials may be coloured or delustred by incorporating in the solutions from which they are made or in the formed materials, a finely divided white or coloured pigment such as barium sulphate, carbon black, or dibenzoyl benzidine.  In an example, a solution in acetone of polyvinyl acetate containing hydroxy groups is extruded into hot air or into an aqueous solution of acetic acid to form filaments which may be subjected to stretching before being wound.  The filaments may be associated with other filaments or fibres such as cotton, regenerated cellulose, cellulose ester, wool, or silk yarns.  The yarns may be used in the production of stiffened textile fabrics, or collars. Foils or films may be used for wrapping or for the production of laminated glass. Specifications 454,425 and 468,430 are referred to.
Patent GB-1511144-A (GB)
Title: Liquid dispensing devices
IPC: B67D3/02
Filed: 1975-05-01
Abstract: 1511144 Liquid dispensing device GASKELL & CHAMBERS Ltd 1 May 1975 [14 June 1974] 26562/74 Heading B8N A liquid dispensing device for an inverted bottle 8 has an anti-tampering socket 9 which has a clamping band 10 operated by a screw 12 rotated by a key 15 or by a knob enclosed by a lockable cover (17), Fig. 4 (not shown). The screw is thus only rotatable to unclamp the band from the neck of the bottle by an authorized person. The device has a counter 4 and a measuring chamber 1. An inlet tube 5 surrounded by a cork or plastics sleeve 6 is engaged in the neck of the bottle and the band 10 engages the outside of the neck. The socket may be integral with the counter housing 4 or if the counter is omitted integral with the measuring chamber housing.
Patent GB-1465620-A (GB)
Title: Reinforcing cages for concrete pipes
IPC: E04C5/06
Filed: 1974-06-15
Abstract: 1465620 Reinforced concrete pipes STRESSED PIPE RESEARCH Inc 15 June 1974 26630/74 Heading F2P [Also in Division B3] A reinforcing cage for a concrete pipe comprises two coaxial coils 12, 14 and longitudinal strands 16 woven between adjacent turns of the coils; the longitudinal strands are provided in pairs following oppositely inclined helical paths. Other longitudinal members 20 may be provided inside, outside or interwoven between the coils 12, 14. The cage, preferably of steel in wire or rod form, is made by first winding one of the coils on to a mandrel and fixing the free ends to the running portions to form planar end rings 18; secondly, the longitudinal strands 16 are disposed on top of coil 12, thirdly, the second coil 14 is wound between the convolutions of the first coil 12 under tension to distort the longitudinal strands 16. The cage is cast in expansive concrete so that upon curing the cage is in tension and the concrete in compression.
Patent GB-1386741-A (GB)
Title: Slide sealing arrangements in rotors for rotary internal  combustion engines of the wankel type
IPC: F01C19/08
Filed: 1973-06-05
Abstract: 1386741 Rotary positive-displacement machines NISSAN MOTOR CO Ltd 5 June 1973 [7 June 1972] 26788/73 Heading F1F In a rotor 2 for a Wankel-type I.C. engine seal strips 32 are lodged in each corner of each side face so as to obviate leakage to the regions on the radially inner sides of sealing strips 24 by way of gaps between the latter and corner seals 26, which engage with apex seals 18. Springs 22, 28, 30, 36 press the seal strips and corner seals against the housing walls 6, 8, 10.
Patent GB-938125-A (GB)
Title: New metal complexes of monoazo dyestuffs containing triazinylamino groups
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B62/095
Filed: 1960-08-03
Abstract: The invention comprises chromium and cobalt complexes of monoazo dyes of formula <FORM:0938125/IV(a)/1> where A is a benzene radical containing the hydroxy group in ortho-position to the azo group, E is a sulphonated alpha-arylaminonaphthyl radical carrying the hydroxyl group in ortho-position to the azo group and A and E together contain 1-4 sulphonic acid groups, one X is a group of formula <FORM:0938125/IV(a)/2> and the other X is a H atom or a group of formula (2), wherein Z is a chlorine or bromine atom and Y is a chlorine or bromine atom or an amino, substituted amino, alkoxy or aryloxy group.  The dyes are prepared by treating a suitable mono- or di-amino-azo dye with a suitable di- or tri-halotriazine and a cobalting or chroming agent.  The metallization preferable precedes the condensation with halotriazine.  If a trihalotriazine is used a second halogen atom may be replaced by reaction with ammonia or amine, alkanol or phenol.  The dyes give red, green and blue shades on cellulose fibres in the presence of an acid-binding agent.  Many examples and starting materials are specified.  Specifications 797,946, 846,505, 847,635 and 870,985 are referred to.
Patent GB-879853-A (GB)
Title: Improvements in the manufacture of turbine or compressor blades
Inventor: TURNER PHILIP GEORGE
IPC: F01D5/14
Filed: 1956-09-03
Abstract: 879,853. Making turbine blades. WIGGIN & CO. Ltd., HENRY. Oct. 11, 1957 [Sept. 3, 1956], No. 26906/56. Drawings to Specification. Class 83 (2). [Also in Group XXVI] A turbine or compressor blade, having longitudinal cooling passages, is formed by extrusion through a die of aerofoil section. A shroud or root is formed by cutting the extrusion for some distance along the major axis and then working the metal laterally, at each side of the separation. The filling, in the cooling passages, is removed at the end where the shroud or roof is to be formed. During the shroud forming process, the length of extrusion is inserted in a two-part die, of the shape of the blade, the metal being at the forging temperature. The shroud forming metal projects from the die, and after cutting, a pressing tool spreads the metal to produce the shroud.
Patent GB-880802-A (GB)
Title: Improvements in or relating to the manufacture of organoboron compounds
Inventor: SHIMMIN JAMES DONALD
IPC: C07F5/02
Filed: 1958-08-21
Abstract: An improved process for preparing organoboron compounds comprises reacting an organo-alkali metal compound in an anhydrous inert liquid reaction medium with a triester of boric acid in at least 15 mole per cent. excess of the stoichiometrical amount, with cooling if necessary, to produce the corresponding organoboric acid ester complex.  Reaction media mentioned include toluene, tetrahydronaphthalene, diethyl and diisopropyl ethers and tetrahydrofuran.  Organo-alkali metal compounds mentioned are lithium, sodium and potassium compounds, the organo group being an acyclic or cyclic hydrocarbon group, saturated or unsaturated, e.g. an aromatic group such as phenyl or a heterocyclic group, e.g. a furyl or thiophene group.  The organo group may have one or more substituents inert to the alkali metal substituent, e.g. hydrocarbon, nitro, etherified hydroxy or trifluoromethyl or the group OM where M represents an alkali metal.  Specific organo alkali metal compounds mentioned are butyl lithium, alkali metal-alkene and -alkyne derivatives, benzyl sodium and p  -potassium, sodium triphenylmethyl, o-aminophenyl lithium, p-nitrophenyl lithium, dibenzylfuryl lithium, thionaphthenyl lithium, phenyl lithium and -sodium.  Triesters of boric acid employed in the process may be derived from an aliphatic alcohol, e.g. containing 1 to 5 carbon atoms or a phenol.  Organic ester complexes insoluble in the reaction mixture may be extracted with a volatile amine, e.g. propylamine to remove the complex which may then be recovered by evaporating the amine from the solution. The organoboric esters may be obtained from the complexes by treating the latter with anhydrous hydrogen halide, e.g. hydrogen chloride. The organoboric acid ester or the complex thereof may be hydrolysed to the corresponding organoboric acid with water, preferably with a dilute mineral acid solution.  Organoboric acids obtained in the process may be converted to the corresponding anhydrides, water being removed azeotropically.  The products of the process are chiefly organoboric compounds though some organoborinic may also be formed, mixtures of organoboronic and -borinic acids being separated by washing with light petroleum.  Organo alkali metal compounds are prepared by reacting halocarbons with alkali metals or by reacting alkyl alkali metals with aromatic hydrocarbon or heterocyclic compounds which may carry one or more substituents.  With an etherified hydroxy group or trifluoromethyl group metallation takes place mainly in the position ortho to the substituent group.  With a methyl mercapto group metallation occurs in the methyl group and not in the nucleus.  The methyl groups in methyl pyridines are also metallated.  The halogenated aromatic or heterocyclic compound may carry a hydroxy group, e.g. as in p-bromophenol.  Solvents for use in the preparation of the organo-alkali metal compounds include anhydrous ethers, ligroin, toluene, xylene and tetrahydronaphthalene.
Patent GB-241957-A (GB)
Title: A device for enabling determined quantities of lubricant to be supplied to bearings and the like
IPC: F16N27/00
Filed: 1925-10-27
Abstract: 241,957. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Oct. 27, 1924, [Convention date]. Actuating by liquid pressure; buckets,- single - acting bucket pumps; drip, preventing.-Lubricant aupplied under pressure, as from a gun, to a lubricator 1 through an opening closed by a spring-pressed valve 5, depresses a piston 8 against a spring 10, ejecting the lubricant beneath it until a stem 9 on the piston closes the delivery passage 12, whereby a predetermined amount of lubricant is supplied to the part to be lubricated, On disconnecting the gun, the piston rises, the lubricant above it passing into the space beneath it through a passage 14 in the piston fitted with a spring- pressed valve 13. The valve 13 and passage 14 may be replaced by an inclined passage of small diameter, or the piston may be made solid and of slightly smaller diameter than the lubricator cylinder. The valve 5 has a cylindrical stem 5<a> fitting in the supply opening, so that, on disconnecting the gun, the stem acts as a piston to reduce the internal pressure and prevent leakage.
Patent GB-1006747-A (GB)
Title: Retaining pin for a window stay
Inventor: EMPSALL WILLIAM ARTHUR
IPC: E05C17/18
Filed: 1964-07-01
Abstract: 1,006,747. Window stays. EMBO Ltd. July 1, 1964, No. 27090/64. Heading E2F. A window stay 8 is provided with apertures 12 adapted to engage over a pin 14 provided with.a pivoted latch 18 formed as an extension of the pin, the pin and latch having complementary cut-away portions at which they are pivoted and the remaining portions being of substantially circular cross-section.
Patent GB-344838-A (GB)
Title: Reinforced concrete pipe and process for its manufacture
IPC: E03F3/04
Filed: 1929-09-06
Abstract: 344,838. Reinforced-concrete pipes. BILLE, L., 45, Grande Rue, Nogent-on- Marne, France. Sept. 6, 1929, No. 27103. Convention date, Oct. 22, 1928. Void [Published under Sect. 91 of the Acts]. [Class 20 (iv).] A reinforced-concrete pipe is formed by locating a number of preformed foundation members 1, Fig. 5, around a mandrel 4, winding iron wire 2 under tension around said members, and then applying concrete 3 to the mandrel while the latter is rotating. The mandrel is preferably of the expanding type and is provided at its ends with spaced rings 5, Fig. 3, which are of such shape as to mould the respective ends of the pipe to a spigot and socket formation and are formed with grooves to accommodate supporting friction rollers 9. The mandrel may be enclosed within a thin sheet of polished copper, tin, &c., while the space between the rings 5 is enclosed by a strip of canvas 26 which is stretched by a counterweight 27 and serves to locate the concrete thereto from a hopper 16. After the moulding operation, the canvas is tied around the pipe by a canvas or rubber belt 30, and the pipe then removed from the mandrel and allowed to set. The foundation members 1 are cast in triangular lengths of rubber 14 disposed within angle-pieces 15, Fig. 6, while the spaced rings 5 are preferably lined with rubber.
Patent GB-191472-A (GB)
Title: Improvements in or relating to the production of emulsions
IPC: B01F7/00
Filed: 1921-10-12
Abstract: 191,472. Douglas & Sons, Ltd., W., and Nicol, J. S. Oct. 12, 1921. Emulsions, making.-In the manufacture of emulsions, such as those used in the manufacture of margarine, the oils and the aqueous constituent are subjected to a preliminary agitating and mixing operation and the mixture is then passed through a series of perforations and grooves in and spaces between two or more hollow concentric cylinders. The apparatus comprises a casing 1 having inlet and outlet passages 2, 3, a fixed outer cylinder 6, a rotary inner cylinder 5, radial paddles integral with the hub 7 of the inner cylinder, radial vanes 16 on the inner cylinder, and fixed baffle blades 22 on the end cover 21 of the casing. The cylinders are formed with perforations and grooves, some of which may be serrated, as described in Specification 181,077, which is referred to. Round-headed pins 24 project through holes in the outer cylinder into grooves 19 on the inner rotating cylinder so as to grind up matter such as casein which may tend to collect in said grooves. The materials to be treated are forced through the inlet 2 to the preliminary mixing chamber 4, thence through perforations 14 to the interior of the inner cylinder where they are more completely mixed by the vanes 16 and baffles 22, and, finally, through the perforations, grooves and spaces in and between the cylinders to the outlet 3. The Provisional Specification describes an apparatus having three cylinders of which the intermediate cylinder only is rotated.
Patent GB-271169-A (GB)
Abstract: 271,169. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 22, 1926. Monoethers of glycols and their derivatives are obtained by the reaction of alkylene oxides upon monohydric alcohols in the presence of sulphuric acid or acid compounds thereof, alkali metal alcoholates ,or alkali salts of the lower fatty acids, these bodies acting as catalysts. According to examples :-(1) Ethylene oxide is added in the cold to methanol containing a little sulphuric acid and the product neutralized and fractionated to give glycol monomethyl ether; the ethers of ethyl, propyl, or isobutyl alcohol may be obtained similarly; (2) ethyl alcohol, containing a little sulphuric acid, and ethylene oxide vapour are atomized into the top of a packed tower and the product siphoned off from the bottom and distilled, giving glycol monoethyl ether: (3) a monomethyl ether of gamma-chlorpropylene, boiling at 168-170‹ C.. is obtained from epichlorhydrin, methanol, and sulphuric acid; (4) glycol monoethyl ether is obtained by heating ethyl alcohol and ethylene oxide with sodium acetate, or by passing the vapours of these substances over sodium acetate distributed upon a support; (5) sodium is dissolved in a large excess of glycol monoethylether, ethylene oxide is added, the product neutralized and distilled, giving an ethyloxyethyl ether of the formula HO.CH2.CH2.O.CH2.CH2OC2H5, boiling at 195‹ C., (6) monobutyl ethers of glycol are prepared by heating in an autoclave ethylene oxide with normal, iso-, or secondary butyl alcohol and a little sulphuric acid.